Bell-ringer.



7 J. B. SCOVILL.

BELL RINGER.

APPLIOATION FILED SEPT.13, 1911.

1,094,170. Patented Apr. 21, 1911 2 SHEETS-SHEET l.

iikwwoz/ j nvewL M/ COLUMBIA PLANDGRAPH CO.,WASHINUTON. D. C.

J. E. SGOVILL.

BELL RINGER. APPLIGATiON FILED SEPT. 13, 1911.

1,094,170. Patented Apr. 21, 191 1 2 SHEETSSHEET 2.

"UNITED STATES PATENT OFFICE.

JAMES E. SCOVILL, OF CHICAGO, ILLINOIS.

BELL-RINGER.

To all whom it may concern..-

Be it known that I, JAMEs E. SooviLL, a citizen of the United States, and a resident of the city of Chicago, county of Cook, and State of lllinois, have invented certain new and useful Improvements in Bell-Ringers, of which the following is a specification.

My invention relates to improvements in bell ringers and has for its object the provision of means for ringing bells or chimes which is of simple construction and efficient in operation.

The invention consists in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings forming a part of this specification, and in which,

Figure 1 is a top plan view of mechanism embodying my invention, Fig. 2, a detail elevation of the switch employed in the device, Fig. 3, an enlarged detached plan view of the mechanism for resetting the bell hammer, Fig. 4, an enlarged section taken on line wm of Fig. 1, Fig. 5, a section taken on line yy of Fig. 3, and Fig. 6, a perspective view of an armature employed in the device.

The preferred form of construction as illustrated in the accompanying drawings comprises a bell 1 which may be in the form of a tube or other suitable form as desired. A hammer 2 is mounted adjacent bell 1 and is carried by a base block 3 pivoted at 4 so as to permit said hammer to strike said bell, a spring 5 being provided for causing the operative stroke of said hammer. An electro-magnet 6 is arranged below hammer 2 and an armature 7 arranged immediately above said electro-magnet. Armature 7 is fixed to a rock shaft 9 and is bifurcated to embrace a trigger-block 10 loosely mounted on shaft 9 and adapted to engage the lower end 11 of base block 3 as shown in Fig. 4. A spring 10' secured to the under side of armature 7 serves to hold block 10 in operative position. At'one end shaft 9 carries a rectangular block 12 and a spring 13 bearing against block 12 is arranged to hold armature 7 normally in elevated position. Wires 14 connect electro-magnet 6 in circuit with a battery 15, a key switch 16 being also arranged in said circuit. Switch 16 is in the form of a fiat bar pivoted at one end and Specification of Letters Patent.

Application filed September 13, 1911.

Patented Apr. 21, 1914.

Serial No. 649,156..

a spring 17 is placed under said bar so as to normally hold said. switch in elevated position. Spring contacts 18 are arranged at either side of switch bar 16 and connected in circuit with wires 14 so that depression of switch bar 16 will close the circuit through electro-magnet 6. By this arrangement it will be observed that with the hammer 2 in the position shown in Fig. 4, excitation of electro-magnet 6 will cause depression of armature 7 and the release of hammer 2 which will be caused to make an operative stroke by spring 5, thus ringing the bell 1.

A rotary member 19 is arranged adjacent the base block 3 and is fixed to a shaft 20 as indicated in Fig. 4. Member 19 carries four pivoted dogs 21 which are in the form of bell crank levers having arms 22 and 23. Springs 24 are secured to one face of member 19 and bear against the ends of bell cranks 21 thus serving to hold said bell cranks normally in inoperative positions as indicated in Fig. 3. A normally stationary cam 25 having a cam projection 26 is loosely mounted on shaft 20 in position to contact with arms 23 and throw arms 22 into operative positions. Base block 3 is provided with the bearing surface 27 adapted to be engaged by arms 22 when the latter are in operative positions and hammer 2 is in contact with bell 1 and cam projection 26 is so adjusted as to cause arms 22 to be thrown into this operative position at the proper time to engage bearing surface 27 when said hammer is in contact with said bell but to permit the throwing of arms 22 by springs 24 into inoperative positions before said arms 22 come into engagement with bearing surface 27 when hammer 2 is in striking position. A stop projection 28 is provided at one corner of bearing surface 27 so as to hold arms 22 of the respective dogs in engagement with surface 27 long enough to effect the de pression of block 3 to effect engagement with spring trigger 10, whereupon the arm 22 in action passes off of surface 27 due to the arc" in which said arm travels. To insure proper engagement between the ends of arms 22 and stop 28, said arms and stop may be beveled as indicated. Cam 25 is carried by a sleeve 25 loosely mounted on shaft 20 and a clamping arm 26 engages said sleeve and is ad justably mounted on a rod 27 thus affording means for adjusting the angular or V in case of operation thereof.

lateral position of said cam. By this arrangement it will be observed that if member 19 is rotated in the direction of the arrow on Fig. 4, arms 22 will'be caused to engage bearing surface 27 and reset the hammer, if the hammer is in contact with bell 1, but if the hammer is already set in operative position arms 22 will idly pass surface 27 and not affect said hammer.

Shaft 20 carries a gear 29 meshing with a pinion 30 on a shaft 31. Shaft 81 carries a pulley 32 connected by belt 33 with a pulley 34: on the shaft 35 of an electric motor 36. WVires 37 connect motor 36 with a battery 38 or other suitable source of electric current. By this arrangement it will be observed that shaft 20 and member 19 may be constantly rotated in the direction indicated by the arrow on Fig. 4 and hammer 2 thus constantly reset in operative position In use when it is desired to cause a stroke of the bell 1, switch bar 16 is depressed thus closing the circuit of electro-magnet .6. This depresses armature 7 and releases hammer 2 for an operative stroke under the influence of spring 5. Member 19 is constantly rotating so that immediately after such operative stroke, one of the arms 22 engages bearing surface 27 and resets the hammer 2. The apparatus is designed especially for use .in the ringing of chimes, and the apparatus set forth may be readily multiplied to ring any desired number of chimes. The construction disclosed will be found to be absolutely under the control of the operator and thus capable of producing sharp and accurate eflects.

While I have illustrated and described the preferred form of construction for carrying my invention into eifect, this is capable of variation and modification without departing from the spirit of the invention. I therefore do not wish to be limited to the precise details of construction as set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having thus described my invention what 1 I claim as new and desire to secure by Letters Patent is:

1. A bell ringer comprising a bell; ahammer therefor; yieldable means arranged to operate said hammer; an electro-magnet; an armature for said magnet; a trigger on said armature arranged to engage and lock said hammer in retracted position ready for striking; an electric circuit for said electip-magnet; means for closing said circuit; a constantly rotating shaft; and automatic means on said shaft arranged to reset said hammer after an operative stroke, substantially as described.

2. A bell ringer comprising a bell a hammer therefor; yieldable means arranged to operate said hammer; an electro-magnet; an armature for said magnet; a trigger on said armature arranged to engage and lock said hammer in retracted position; an electric circuit for said electro-magnet; means for closing said circuit; a rotary member carrying pivoted dogs adapted to reset said hammer; springs arranged to hold said dogs in inoperative positions; a stationary cam arranged to throw said dogs into operative positions; and means for rotating said member substantially as described.

8. A bell ringer comprising a bell; a hammer therefor; a spring arranged to operate said hammer; an electro-magnet; an armature for said magnet; a trigger on said armature arranged to engage and lock said hammer in retracted position; an electric circuit for said electro-magnet; means for closing said circuit; a rotary member carrying pivoted dogs adapted to reset said hammer; springs arranged to hold said dogs in inoperative positions; a stationary cam arranged to throw said dogs into operative positions; and means for rotating said member, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES E. SCOVILL. lVitnesses HELEN F. LILLIs, JOSHUA R. H. Por'rs.

Copies of this patent may be obtained. for

five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

